Last year Maurice Saatchi lost his wife to ovarian cancer. He tells Damian Whitworth why he wants to protect doctors as they trial new treatments

When I arrive at Lord Saatchi’s Soho office he is poring over legal documents with the laser-like intensity you would expect of a man who has been king of the advertising jungle and a political heavyweight with numerous rough campaigns under his belt.

But within a few minutes of starting to talk about the personal grief that has led to this mountain of legal briefing papers, he is sliding a finger behind those trademark giant, tortoiseshell spectacles to gently dab a moist eye.

This week Lord Saatchi launched a Private Member’s Bill in the House of Lords that seeks to